hopkins



W61! an I Witnesses.-

G. F. HOPKINS.

Fire Place.

N. PE1ER$ Pholtrulhngraphor. Wuhingtan, D. I;

Patented Sept. 8; 1837. 7

Inventor:

pnrrnn STATES PATENT ormen GEORGE F. HOPKINS, OF NEW YORK, N. Y.

. CONSTRUCTION OF STOVESL Specification of Letters Patent No. 380, dated March 8 1837.

To all whom it may concern:

'Be it known that I, GEORGE F. HOPKINS, of the city of New York, in the county and State of New York, have discovered and invented a new and useful improvement in the manufacture and construction ofstoves, not

heretofore known nor used, combining and promoting safety, economy, comfort, and convenience in warming rooms, &c.,'to be called Hopkins Safety Parlor and Ofiice Stove; and I do herebydeclarethat the fol-- lowing is a full and exact description.

suitable material.the form of the body is a segment (comprising about .two thirds) of a circle, the segment being in the rear, the

"front and sides circular .the body resting upon the bottom plate I in a groove or against a rim .Jand nearly represented by a uniform upright cylinder with one side (about one third) of the circle hewn off for the rear of the stove. The bottom plate I which'is supported by feet K projects a foot or other convenient and desirable distance according to the size of the stove forward in front of the stove forming a convenient and pleasant place to rest the feet, and projects a little less in the rear of the stove forming a shelf and isabout two feet wide in front and one foot wide in the rear and in its center under the grate has a basin or depression M to receive the ashes which fall into it through a plate N, full of holes.

The front of the stove where are the bars of the grate, is concave. and comprises about one half of. the circular form or one third of a circle-the bars '0 forming this convexity, so that the heat, radiating from the sides of the bars is thrown directly upon nearly every part of the room. The shape of the bars .which run up and down'is nearly triangular,being in proportion of about of an inch in depth from front to rear and aboutof an inchthick on the inside with the flat surface next the fire and about of an inch thick in front and about i of an inch apart. The grate O is movable resting in front upon two brackets P or with two small projections of the grate resting in two pockets one in each side ofthe stove and in the rear upon a single hook or pinIt, fastened to the back and can be taken out in a moment of time, thus converting the stove into a fireplace for wood, using asmall pair of andirons, removing the grate also facili- 'tates cleaning the stove of cindersand refuse coal, &c., before making a fire.

The back of the stove is composed of two upright plates, the front one next the fire S. circular and presenting a convex front,

its thickness in the center being about an inch and diminishing toward the sides. It s perpendicular from the bottom plate until it reaches a point horizontal with the top H the plate above it 5 inches, and thence moderate angle until it reaches the flue, wh1ch may be 5 or 6 inches (or correspond- 111g Wlth the open space in front between the top of the grate to the lower edge of the front plate above the'grate) and then ascends in aperpendicular linetothe top plate of the stove except leaving suflicient room for the flue T. preserving its: convex front throughout.

The two side or end plates U next the fire, and this convex rear plate are of one piece, butthese two end plates instead of being parallel with each other, converge back in a direction meeting in a line drawn perpendicularly down from the rear center of the top plate, by which the heat from the respective sides is thrown transversely to opposite sides of the room. This, convex back .plate of the furnace is a little more back plate'Vrof the stove andleaves thedistance between the two back plates a little the top plate 5 or 6 inches moreor than halfway back from the grate toth'e flat other convenient distance according to the,

sizeof the stove.

In the top and bottom plates are grooves X. in which convex sliding doors move;

These doors are each about th of a circle and correspond in size with thetwo sides of the stove which reach from the sides (or ends) of the grate to the uprightfl at plate in'the rear. When these doors are brought near'together a brisk draft is produced, and

as soon as the fuel is ignited the doors are.

shoved back, leaving the fire completely exposed, while the sliding doors have the appearance of solid sides of the stove. Vhen these doors are closed, no fire can escape, thus affording the most perfect security, and fire can thus be kept many hours.

Immediately over the fireplace is an oval hole in the top plate, on which is placed a thin hollov cone Y, and directly in its rear covering another and larger hole in the top plate of nearly the form of a semiellipsis is a hollow receiver called a chamber Z which is a distinct piece from the top plate of the stove, the whole front of which is globular receding backward toward the top and very thin-the rear part of this chamber is upright, oval and 29; of an inch thick. The smoke and heat that escape through the flue are received into this chamber immediately under the thin globular part and the heat being propelled forward by the thick upright rear of the chamber, finds an easy vent into the room through the thin front. The outlet & for the smoke is near the bottom of the chamber in the rear, (the place for the pipe) by means of which it passes off freely but the heat penetrates through the thin front part of the chamber, thereby saving nearly all the heat that is made by any given quantity of fuel.

The rear plate V. of the stove is an upright flat plate, extending across and uniting the recess of the side plates of the stove and forming a segment (about -33) of the circle, and to which may be riveted one or more shelves, corresponding with the lower shelf which is part of the bottom plate of the stove. These shelves are useful in keeping food, drink, plates, &c., continually warm without the heat being sufficient to burn. Between this flat rear plate V. and the convex furnace plate S, is, as stated be fore a space or hollow of about & inches in an ordinary sized stove, and proportionately varying with the size of the stove, this being and important division, giving warmth without intense heat.

The top plate WV, is an entire circle, resting upon the two side plates and rear flat plate of the stove :-the rods which bind together the stove, extend from the top to the bottom plate in the hollow space between the sides of the furnace and the outside circular sides of the stove andbetween the convex and flat rear plates and are not seen. By removing the cone, a tea or other kettle can be boiled in a few minutes.

For a common sized stove, the following would be about the proper porp0rtions. The diameter of the frame from side to side 18 inches.the legs 4 inches long.-the bottom plate in front two feet wide, and projecting one foot beyond the grateand in the rear one foot wide and projecting one foot,the ashes receiver 2% inches in depth,the space from the grate to the bottom plate 2% inches,the height of the grate 8 inches from the bottom of the bars to the top'-the sweep of the grate (it being inside the frame) being part of a circle 14 inches in diameter.depth of the fire place in the center 7% inches,distance from the top of the grate to the lower edge of the plate above it 5 inches, and thence to the top plate 6 inches.the hole for the 1 cone elliptical and about 7 by 5 inches, the cone about 3 inches in height. the hole for the chamber about 5 inches from front to rear and about 7 inches wide crosswise, and the chamber about 10 inches in height in the rear,the pipe about 51} inches in diameter.the dimensions of the flue equal to about 24 square inches,the distance from the top to the bottom plate 22 or 23 inches. The chamber 10 inches high in the rear, and 10 inches in diameter crosswise,-the side plates of the furnace, (being part of the convex back plate) 5. inches each from the front to the point of convexity,and that convexity corresponding with that of the grate in front-a stove may be made larger or smaller upon this plan.

What I claim as my invention and wish to secure by Letters Patent in the within described stove are- 1. The employment of sliding doors running in curved grooves formed in the upper and loWer plates to receive them essentially as above set forth.

2. The placing of metallic shelves against the rear plate of the stove in the manner and for the purpose above specified.

3. The form and construction of the chamber essentially in the manner and for the purpose above specified.

I claim to havefirst discovered the above combination of advantages, and to be the first and original inventor of each of said last mentioned three improvements, and desire to secure by Letters Patent my said inventions.All which combined, tend to the perfection of the stove-and which may be all used together or at the option of the maker, vender or user,any one or more of said inventions may be omitted, but if so, I still claim the remaining one or ones, after such optional omissions. And I claim them, whether the other parts of said stove are constructed in the manner and form above described, or in any other manner or form in which my said 3 inventions or either of them shall be used or employed.

The advantages of this construction of stove over any other form now in use for warming rooms, consists in its saving of heat; its diifusing heat more equally throughout the different parts of the room; its safety by means of the sliding doors; the convenience of warming articles, food, &c., upon the shelves and plates in the rear,

Without danger of roasting or burning; the facility of converting it into a fireplace for wood; the facility of kindling a fire by using the sliding doors instead of a blower.

The letters in the above specification refer to the accompanying drawings, which may be better understood by the following explanations, viz-Drawing No. 1, represents the upper surface of the bottom plate. Drawing N o. 2, represents a horizontal section of the stove a little above the bottom plate. Drawing No. 3, represents a section of the stove made by a perpendicular line drawn through the center of the stove from the front to the rear. Drawing No. 4 represents a section made by a perpendicular line drawn through the center of the stove from side to side. Drawing No. 5 representsa perspective view of the stove.

The parts of the drawings referred to by the letters, represent as follows: G, the front; H, the sliding doors; I, the bottom plate; J, a groove or rim; K, the feet; L, shelves; M, ashes basin; N, basin cover; 0, bars of the grate; P, brackets to suport the grate in front R, pin to support the grate in the rear; S, convex rear plate next the fire; T, flue to pass off the smoke; U, two diagonal side plates; V, rear back plate of the stove; WV, to plate or cover of the stove; X, grooves or rim against which the doors slide; Y, a cone (same as J); Z, a chamber ;'&, outlet for thesmoke t0 the pipe.

Dated New York 22nd August 1887 GEO. F. HOPKINS.

Witnesses WILLIAM A. HoPKINs, HENRY C. MATSELL. 

